#17153E#17153E

#17153E is a very dark, moderate blue. Relative luminance 0.011; OKLCH L 22.6% C 0.076 H 280.6°. Best body text is #FFFFFF at 17.31:1 contrast (WCAG AA passes).

Color values

HEX	#17153E
RGB	rgb(23, 21, 62)
HSL	hsl(243, 49%, 16%)
HSV	hsv(243, 66%, 24%)
CMYK	cmyk(62.9%, 66.1%, 0%, 75.7%)
CIE-LAB	lab(9.53, 15.11, -26.06)
CIE-LCH	lch(9.53, 30.12, 300.11°)
OKLab	oklab(22.63% 0.014 -0.0747)
OKLCH	oklch(22.63% 0.076 280.6)
XYZ	xyz(1.4907, 1.0662, 4.6837)
Luminance	0.0107 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17153E #3C3E15

analogous

#15283E #17153E #2C153E

triadic

#17153E #3E1715 #153E17

tetradic

#17153E #3E1528 #3C3E15 #153E2C

square

#17153E #3E1528 #3C3E15 #153E2C

split-complementary

#17153E #3E2C15 #283E15

monochromatic

#080817 #080817 #17153E #28246C #393499

Accessibility & contrast

On white

17.31

#17153E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#17153E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17153E

17.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17153E	#FFFFFF	#000000	##FFFFFF
##17153E	1.00	17.31	1.21	17.31
#FFFFFF	17.31	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001C3F

Deuteranopia (green-blind)

#00193D

Tritanopia (blue-blind)

#051F27

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #17153e;
/* rgb */ color: rgb(23, 21, 62);
/* oklch */ color: oklch(22.6% 0.076 280.6);

Tailwind

colors: {
  custom: {
    50: '#585274',
    500: '#17153e',
    950: '#000000',
  },
}

SCSS

$custom: #17153e;
$custom-light: #585274;
$custom-dark: #000000;

JSON

{
  "hex": "#17153e",
  "rgb": {
    "r": 23,
    "g": 21,
    "b": 62
  },
  "hsl": {
    "h": 242.927,
    "s": 49.398,
    "l": 16.275
  },
  "oklch": {
    "l": 0.22625,
    "c": 0.07599,
    "h": 280.6
  },
  "luminance": 0.01066
}

Semantic roles & 50–950 ramp

primary

#17153E

secondary

#737639

accent

#D94FD2

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#040208

muted

#79787B

Preview Lab

Preview with #17153E

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →